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Texas Instruments TPS5410MDREP
- Part No.:
- TPS5410MDREP
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS5410MDREP.pdf
- Description:
- IC REG BUCK ADJ 1A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,216
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Product details
Overview
TPS5410MDREP from Texas Instruments is a radiation-hardened, wide-input-range (5.5 V to 36 V), 1-A synchronous step-down DC/DC converter with integrated 110-mΩ high-side N-channel MOSFET, fixed 500-kHz switching frequency, and adjustable output down to 1.22 V (±1.5% initial accuracy) - used in military-grade power supplies for avionics, satellite subsystems, and ruggedized industrial control.
For engineers reviewing the TPS5410MDREP datasheet, TPS5410MDREP pinout, TPS5410MDREP application, or TPS5410MDREP equivalent, key selection criteria include its –55°C to 125°C operating junction temperature, internal compensation, input voltage feed-forward for transient response, and ENA-controlled shutdown with 18 μA quiescent current.
Technical Context
The TPS5410MDREP employs voltage-mode PWM control with an internally trimmed 1.221-V bandgap reference and type-3 internal compensation, enabling stable operation without external compensation components. Its feed-forward architecture maintains constant power-stage gain across input voltage variations, improving line regulation and transient response.
Protection features include cycle-by-cycle overcurrent limiting with hiccup-mode fallback, undervoltage lockout (UVLO) with 5.3-V start threshold and 330-mV hysteresis, overvoltage protection triggered at 112.5% × VREF, and thermal shutdown at 135°C with 14°C hysteresis - all implemented in monolithic silicon with no external sensing elements required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 36 V - supports direct connection to 12-V/24-V distributed bus systems and battery inputs without pre-regulation. |
| Output Current | 1 A continuous / 1.2 A peak - sufficient for powering FPGAs, DSPs, and analog front-ends in space-qualified electronics. |
| Switching Frequency | Fixed 500 kHz - enables compact magnetics (e.g., 68-μH inductor) and predictable EMI filtering design. |
| Reference Accuracy | ±1.5% initial (TJ = 25°C), ±1.7% over full temperature range - ensures tight output regulation without trimming. |
| rDS(on) | 110 mΩ (VIN ≥ 10 V) - minimizes conduction loss and enables >95% peak efficiency at 20-V input / 12-V output. |
| Quiescent Current | 4.4 mA (active), 18 μA (shutdown) - extends battery life in low-duty-cycle telemetry modules. |
| Operating Temperature | –55°C to 125°C junction - qualified for extended-life defense/aerospace deployments per controlled baseline manufacturing. |
Pinout & Package
TPS5410MDREP is housed in an industry-standard 8-pin SOIC (D package), with exposed pad omitted - compatible with standard PCB assembly processes and legacy military board layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | High-side gate driver boost node | Connects to PH via 0.01-μF ceramic capacitor; supplies gate drive voltage above VIN for N-channel MOSFET turn-on. |
| NC (2,3) | No-connect | Internally unconnected - must remain floating; no routing or grounding permitted. |
| VSENSE | Feedback input | Monitors resistor-divider output voltage; regulates VOUT by maintaining 1.221 V at this pin. |
| ENA | Enable control | Active-high logic input; <0.5 V disables regulator and reduces IQ to 18 μA; internal pull-up allows floating for default-enable operation. |
| GND | Power ground | Primary return path for IC bias, gate drive, and current-sense circuits - requires low-impedance top-layer copper pour. |
| VIN | Main input supply | Accepts 5.5–36 V; requires local 4.7-μF X5R/X7R ceramic bypass capacitor placed adjacent to pin. |
| PH | Switch node | Drain of internal high-side MOSFET; connects to inductor, catch diode anode, and BOOT capacitor - high dv/dt node requiring minimized trace area. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated High-Side MOSFET | 110-mΩ rDS(on) at VIN ≥ 10 V eliminates external switch and reduces BOM count and layout complexity. |
| Internal Compensation | Type-3 network embedded in die - removes need for external RCZ network, shortening design cycle for radiation-tolerant power rails. |
| Voltage Feed-Forward | Fixed gain of 25 - stabilizes loop gain across input variation, enabling consistent transient response from 12 V to 36 V input. |
| Robust Protection Suite | UVLO, OCP (hiccup + cycle-by-cycle), OVP (112.5% × VREF), and thermal shutdown - prevents fault propagation in unattended systems. |
| Extended Temperature Support | –55°C to 125°C operation with controlled baseline manufacturing - meets MIL-PRF-38535 requirements for defense/aerospace use. |
Applications
| Avionics Power Distribution | Satellite Payload Regulation |
|---|---|
Use Scenario: Regulating 28-V aircraft bus to 3.3-V/5-V for flight computers and sensor interfaces in certified airborne equipment. IC Role / Device Role / Timing Role: Primary non-isolated buck converter delivering tightly regulated, low-noise DC power with UVLO and thermal protection for safety-critical subsystems. Use Value: Eliminates need for external current-sense resistors or compensation components, reducing failure modes and easing DO-160E EMC compliance. | Use Scenario: Providing 12-V bias to RF transceivers and ADCs in LEO satellite payloads subject to total ionizing dose (TID) exposure. IC Role / Device Role / Timing Role: Radiation-tolerant point-of-load regulator with guaranteed operation up to 125°C junction temperature in vacuum-constrained thermal environments. Use Value: Internal feed-forward and fixed 500-kHz frequency ensure predictable ripple and EMI behavior during orbital thermal cycling. |
| Industrial Control Backplane | Ruggedized Test Equipment |
Use Scenario: Converting 24-V factory floor supply to 1.8-V/3.3-V for PLC I/O modules operating in high-vibration, wide-temperature industrial settings. IC Role / Device Role / Timing Role: High-reliability buck controller with hiccup-mode OCP to survive intermittent short-circuits on field wiring without latch-up. Use Value: 110-mΩ MOSFET and internal slow-start (8 ms typical) limit inrush current into capacitive loads during hot-swap events. | Use Scenario: Powering precision analog circuitry (e.g., DACs, op-amps) in portable defense test sets requiring stable 5-V rail across battery discharge profiles. IC Role / Device Role / Timing Role: Adjustable-output buck converter with ±1.5% reference accuracy and low 18-μA shutdown current for standby mode longevity. Use Value: ENA pin enables microcontroller-driven power sequencing, while internal compensation avoids drift-prone external components in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5009AMHX/NOPB | Higher 75-V max input, lower 0.6-A output, no internal compensation - requires external loop compensation. | Better suited for 48-V telecom or PoE-powered systems; not drop-in due to different pinout and feedback topology. | Select only if input exceeds 36 V and output current ≤ 0.6 A; verify stability with external compensation network. |
| TPS54202HDDCR | Commercial-grade (–40°C to 125°C), 2-A output, same 500-kHz frequency and pin-compatible SOIC-8 package. | Not radiation-hardened or extended-life qualified; lacks EP-level screening and TID tolerance. | Use for cost-sensitive terrestrial prototypes or non-flight hardware where radiation hardness is unnecessary. |
Compared with LM5009AMHX/NOPB and TPS54202HDDCR, the TPS5410MDREP uniquely delivers military-grade temperature range, radiation tolerance, and internal compensation in a proven 8-pin SOIC footprint - making it irreplaceable for flight-critical and long-duration space applications where component pedigree and lifecycle assurance are mandatory.
Availability
TPS5410MDREP is available at Aetrix Electronics and suitable for avionics power distribution, satellite payload regulation, and industrial control backplane applications requiring stable component supply under extended product lifecycle management.
Supply support for TPS5410MDREP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability aerospace & defense solutions, with decades of heritage in SWIFT™ DC/DC technology.
The TPS5410MDREP belongs to TI's SWIFT™ family of radiation-hardened DC/DC converters, designed specifically for mission-critical power conversion in defense, aerospace, and medical systems where extended temperature operation and controlled baseline manufacturing are essential.
FAQ
What is the maximum input voltage rating for the TPS5410MDREP?
The TPS5410MDREP has an absolute maximum input voltage rating of 40 V on the VIN pin, but its recommended operating input voltage range is strictly 5.5 V to 36 V per the datasheet. Exceeding 36 V may trigger overvoltage protection or degrade long-term reliability, especially under thermal stress. The device's UVLO circuit prevents startup below 5.3 V, ensuring clean power sequencing in harsh environments where TPS5410MDREP is deployed.
Does the TPS5410MDREP require external compensation components?
No, the TPS5410MDREP implements a fully internal type-3 compensation network optimized for voltage-mode control, eliminating the need for external resistors or capacitors in the feedback loop. This simplifies layout, improves reliability in high-vibration environments, and ensures consistent stability across its full operating temperature range (–55°C to 125°C). Engineers using TPS5410MDREP can achieve robust regulation with only the external resistor divider for VOUT setting and standard input/output filtering.
How does the ENA pin function on the TPS5410MDREP?
The ENA pin on the TPS5410MDREP is an active-high enable input with 1.3-V typical turn-on threshold and 0.5-V turn-off threshold, plus 450-mV hysteresis. When pulled above 1.3 V, the device initiates internal slow-start (8-ms typical ramp); when pulled below 0.5 V, it enters shutdown with 18-μA quiescent current. An internal pull-up allows floating ENA for default-enable operation. This precise control enables microprocessor-driven power sequencing in systems where TPS5410MDREP supplies critical subsystems.
What protection features are built into the TPS5410MDREP?
The TPS5410MDREP integrates five core protections: undervoltage lockout (UVLO) with 5.3-V start and 330-mV hysteresis; cycle-by-cycle overcurrent limiting with hiccup-mode fallback; overvoltage protection at 112.5% × VREF; thermal shutdown at 135°C with 14°C hysteresis; and internal slow-start to limit inrush. These functions operate autonomously without external components - a key requirement for TPS5410MDREP deployment in inaccessible or safety-critical systems like satellite power buses.
Can the TPS5410MDREP be used with ceramic output capacitors?
Yes, the TPS5410MDREP is fully compatible with low-ESR ceramic output capacitors, and the datasheet recommends X5R or X7R dielectrics for stability over temperature. Its internal compensation is tuned for ceramic-capacitor-dominated output filters, supporting values from ~10 μF to 100 μF depending on ripple and transient requirements. For example, a 47-μF X7R capacitor is used in the reference design (Figure 11) to achieve <50-mV peak-to-peak ripple at 1-A load - confirming TPS5410MDREP's suitability for modern low-ESR ceramic-based power architectures.
TPS5410MDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1.221V
- Voltage - Output (Max):
- 31.32V
- Current - Output:
- 1A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS5410MDREP FAQ
1.How can I place an order for TPS5410MDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS5410MDREP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS5410MDREP reliable?
The price and inventory of TPS5410MDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS5410MDREP is usually 5 days.
3.What payment methods are accepted for TPS5410MDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS5410MDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS5410MDREP?
TPS5410MDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS5410MDREP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS5410MDREP?
For technical support, including TPS5410MDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS5410MDREP requirements.
6.How does Aetrix verify that TPS5410MDREP is sourced from the original manufacturer or authorized distributors?
All TPS5410MDREP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS5410MDREP meets industry standards.
7.What is the process for return or replacement of TPS5410MDREP?
All TPS5410MDREP units undergo pre-shipment inspection (PSI). If there is an issue with TPS5410MDREP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS5410MDREP part is unused and in its original packaging.
Return procedure for TPS5410MDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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